iCloud not syncing due to Apple ID change 2 years ago

iCloud not synching caused by changing Apple ID 2 years ago. Apple still haven’t fixed it. Also on their advice depaired Apple Watch as part of this investigation and now can’t pair it. Even reformatted hard drive of original MacBook! What’s wrong with Apple? Why can’t they give me a solution? How many more years do I have to wait before this is fixed?

[Re-Titled by Moderator]

Original Title: iCloud won’t synch

iPhone 11, iOS 18

Posted on Jul 21, 2025 12:41 AM

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Implication for changing the Apple ID It seems that changing Apple ID is a pretty straight forward process. However I cannot find any satisfactory explanation or guide as what happens with the change in the Apple ecosystem. For example when you change the Apple ID from the website: what happens if you are already/still signed in on your Iphone (and Apple Watch) and Mac with the old Apple ID you just changed? Do you need to sign out and sign in again with the new one? It is better to sign out everywhere before changing it? are there any implications in regards to iCloud backup and advance data protection? I'm assuming signing out from your old changed Apple ID will not cause any data loss, but will I be able to log in with the new changed Apple ID (the old one not in use anymore) and find everything there? No conflicts in data backups or anything? Will subscriptions like Apple Music be tied to the new Apple ID automatically? I would really appreciate if someone could point me to the right direction or share their experience how they properly did it. Thank you!
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iCloud not syncing due to Apple ID change 2 years ago

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